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Natsu-Mon: 20th Century Summer Kid

Natsu-Mon: 20th Century Summer Kid

A circus troupe comes to Yomogi Town, a rural town in Japan situated between mountains and the ocean. As the son of the circus ringmaster, enjoy a special summer filled with wholesome adventures!

Released Jun 26, 2024 Developer TOYBOX Inc., Millennium Kitchen Co., Ltd. Publisher Spike Chunsoft Co., Ltd. Platforms Windows AdventureLife SimExploration3DCartoon
View on Steam ↗ $39.99 (US · as of 2026-05-16)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

95.9%positive194 reviews
Recommended · 8 found this helpful

“This is Boku no Natsuyasumi's Breath of the Wild. Not as dense but still a really good time.”

— a player, Steam review · 43 hrs played
Recommended · 2 found this helpful

“This is one of the best games there are. This game knows what being a kid in summer feels like and it is just nice enough to give you a taste of those sweet August vibes. Inject this game into my veins please, thank you very much!”

— a player, Steam review · 2 hrs played
Recommended · 2 found this helpful

“This might be a perfect video game. So charming in every aspect. Makes you so nostalgic for those long summer days of your childhood. Gameplay is so addictive and fun. My first play session with this game stretched out to 7 hours because you want to just keep exploring further…”

— a player, Steam review · 20 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2026-08 via SteamCharts; self-collected from the Steam API since Aug 2026.

57all-time peak
0 10 20 2025 2026 No data collected for this period No data collected for this period 17 avg · Sep 2024

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

36achievements
7.4%median completion
0.5%rarest: Detective Yoyogi Shibuya
39.8% of players 36.4% of players 34.7% of players 31.7% of players 27.5% of players 23.4% of players 22.6% of players 21.4% of players 19.3% of players 19.2% of players 18.5% of players 17.4% of players 17.3% of players 17.1% of players 16.4% of players 12.6% of players 10.2% of players 7.5% of players 7.4% of players 6.8% of players 4.6% of players 4.4% of players 4.4% of players 4.1% of players 3.2% of players 2.5% of players 1.9% of players 1.6% of players 1.5% of players 1.2% of players 1.1% of players 1.0% of players 0.6% of players 0.6% of players 0.5% of players 0.5% of players 39.8% 0% most earned rarest
Almost everyone has
39.8%Acrobat in Training — Hidden achievement
36.4%Rarity Found — Made a donation to the museum for the first time
34.7%First Appraisal — Had a Mystery Object appraised for the first time
Rarest badges of honor
0.5%Detective Yoyogi Shibuya — Hidden achievement
0.5%[Broadcast Over Sunset] Sailor of Space — Hidden achievement
0.6%My Own Art Style — Hidden achievement

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Sep 15, 2024
Steam Version of Natsu-Mon: 20th Century Summer Kid Special Discount Sale

"Natsu-Mon: 20th Century Summer Kid" will receive a special discount "Last Summer Sale"* from September 15th to September 28th 8am PT! Save up to 54% off the main game. "Natsu-Mon: 20th Century Summer

Aug 06, 2024
Natsu-Mon: 20th Century Summer Kid - Data Update Notice

・ English added to text language options ・ Graphic fixes ・ Text fixes ・ Fixed an issue that sometimes occurred when catching a fish barehanded ・ Adjusted UI size when obtaining a new bug or a sticker

Jun 27, 2024
Steam Version of Natsu-Mon: 20th Century Summer Kid Now on Sale

*This game currently supports Japanese, Traditional Chinese, and Simplified Chinese only. English will be added via a patch update on August 6th, 2024. "Natsu-Mon: 20th Century Summer Kid" https://sto

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAdventure
Player tagsAdventure · Life Sim · Exploration · 3D · Cartoon · Cartoony · Colorful · Cute · 1990's · Third Person · Atmospheric · Open World (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Full controller support · Steam Trading Cards · Gamepad Recommended · DualShock Controller Support · DualShock Controller Support · DualSense Controller Support
LanguagesSimplified Chinese, Traditional Chinese, Japanese * , English *
ControllerFull support
Achievements36
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows10 Processor: Intel Core i3-3225/AMD FX-8350 Memory: 8 GB RAM Graphics: GeForce GTX 750/Radeon R7 360 Storage: 2.6 GB available space